Superfine liquid metering device

Abstract

The utility model discloses a liquid ultra-precision metering device which comprises a weighing hopper provided with a water outlet and a supporting frame, the weighing hopper is located in the supporting frame, a liquid storage tank is arranged on the upper side face of the supporting frame, the upper side face of the liquid storage tank is communicated with a water inlet pipe and a quick water outlet pipe, the other end of the quick water outlet pipe is located in the weighing hopper, and the other end of the quick water outlet pipe is located in the weighing hopper. A water inlet pipe is communicated with the lower side surface of the liquid storage tank, a water inlet valve is arranged on the water inlet pipe, a precision water outlet pipe is communicated with the lower side surface of the liquid storage tank, a manual valve and a pneumatic valve are arranged on the precision water outlet pipe, the manual valve is positioned above the pneumatic valve, and the manual valve and the pneumatic valve are positioned above the weighing hopper; a weighing assembly is arranged between the weighing hopper and the support frame; the water outlet is communicated with a water drainage assembly; the utility model has the advantage that the water inflow is accurately controlled.

Description

Technical Field

[0001] This utility model belongs to the field of liquid metering technology and relates to a liquid ultra-precision metering device. Background Technology

[0002] A liquid ultraprecision metering device is a device used to accurately measure the composition of liquids. It is typically used in industrial production processes that require high precision, such as pharmaceuticals, chemicals, and food. This device is designed to achieve extremely high accuracy and stability in measuring liquid components to ensure product quality and production efficiency.

[0003] Chinese utility model patent with authorization announcement number CN203047890U discloses a liquid storage tank with a measuring device, including a liquid storage tank and a measuring device. The side of the liquid storage tank is equipped with a radar level measuring device. This technical solution can accurately measure the volume of liquid in the liquid storage tank by setting an ultrasonic radar on the liquid storage tank. However, this technical solution can only measure the liquid in the liquid storage tank and cannot accurately control the liquid content in the liquid storage tank. Utility Model Content

[0004] To address the aforementioned problems, this invention proposes a liquid ultra-precision metering device, which effectively solves the problems in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A liquid ultra-precision metering device includes a weighing hopper with a drain outlet and a support frame. The weighing hopper is located inside the support frame. A liquid storage tank is provided on the upper side of the support frame. An inlet pipe and a fast outlet pipe are connected to the upper side of the liquid storage tank. The other end of the fast outlet pipe is located inside the weighing hopper. An inlet valve is provided on the inlet pipe. A precision outlet pipe is connected to the lower side of the liquid storage tank. A manual valve and a pneumatic valve are provided on the precision outlet pipe. The manual valve is located above the pneumatic valve, and both the manual valve and the pneumatic valve are located above the weighing hopper.

[0006] A weighing assembly is provided between the weighing hopper and the support frame;

[0007] The drain outlet is connected to a drainage component.

[0008] Furthermore, the weighing assembly includes four support blocks arranged in a ring array on the outer side of the weighing hopper and a weight sensor disposed between the support blocks and the support frame, wherein the upper side of the weight sensor is connected to the lower side of the support block.

[0009] Furthermore, the drainage assembly includes a water storage tank, a drainage pipe is connected to the outer side of the drain outlet, a drainage valve is installed on the drainage pipe, one end of the drainage pipe is inserted into the water storage tank, a water pump is installed on the upper side of the water storage tank, a water supply pipe is connected between the water pump and the upper side of the liquid storage tank, and the lower end of the water pump is located at the lower end inside the water storage tank.

[0010] Furthermore, the lower side of the support frame has four support legs arranged in a rectangular array.

[0011] Furthermore, a base plate is provided on the lower side of the support leg.

[0012] Furthermore, a cover plate is provided on the upper side of the weighing hopper, and a through hole is provided on the upper side of the cover plate to allow the fast water outlet pipe and the precision water outlet pipe to pass through.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This invention achieves ultra-precise delivery of liquid in the weighing hopper through a fast-flow water pipe, a precise water pipe, a manual valve, a pneumatic valve, and a storage tank, thereby improving the accuracy of water flow in the weighing hopper. The drainage component enables the discharge and reuse of excess water in the weighing hopper, improving the accuracy of water flow in the weighing hopper while reducing resource waste. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This utility model Figure 1 The front view.

[0017] In the diagram: 1. Weighing hopper; 2. Support frame; 3. Support leg; 4. Weight sensor; 5. Liquid storage tank; 6. Inlet pipe; 7. Fast outlet pipe; 8. Precision outlet pipe; 9. Manual valve; 10. Pneumatic valve; 11. Water storage tank; 12. Water pump; 13. Water delivery pipe; 14. Drain valve; 15. Drain pipe; 16. Drain valve; 17. Inlet valve; 18. Base plate; 101. Drain outlet; 201. Support block; 202. Cover plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] like Figure 1 , Figure 2 A liquid ultra-precision metering device includes a weighing hopper 1 with a drain outlet 101 and a support frame 2. The weighing hopper 1 is located inside the support frame 2. A drain valve 16 is installed at the drain outlet 101. A liquid storage tank 5 is fixed to the upper side of the support frame 2 by bolts. An inlet pipe 6 and a fast outlet pipe 7 are connected to the upper side of the liquid storage tank 5. The other end of the fast outlet pipe 7 is located inside the weighing hopper 1. An inlet valve 17 is installed on the inlet pipe 6. A precision outlet pipe 8 is connected to the lower side of the liquid storage tank 5. A manual valve 9 and a pneumatic valve 10 are installed on the precision outlet pipe 8. The manual valve 9 is located above the pneumatic valve 10, and both the manual valve 9 and the pneumatic valve 10 are located above the weighing hopper 1.

[0020] A weighing assembly is provided between the weighing hopper 1 and the support frame 2;

[0021] Drain outlet 101 is connected to a drainage component.

[0022] During use, the operator opens the inlet valve 17 to inject water into the storage tank 5 through the inlet pipe 6. When the storage tank 5 is full, the water flows through the quick-outlet pipe 7 into the weighing hopper 1. At the same time, the weighing component weighs the weighing hopper 1 and monitors the water flow rate in the weighing hopper 1. When the water flow rate in the weighing hopper 1 reaches 95% of the required water flow rate (this value can be adjusted arbitrarily), the operator closes the inlet valve 17 to stop the quick-outlet pipe 7 from injecting water into the storage tank 5. Then, the operator opens the pneumatic valve 10 to discharge the water from the storage tank 5 into the weighing hopper 1 through the precision outlet pipe 8. The operator then adjusts the drainage rate of the precision outlet pipe 8 through the manual valve 9 to ensure that the water flow rate in the weighing hopper 1 accurately reaches the required water flow rate, reducing resource waste and increasing the accuracy of the metering device.

[0023] In this embodiment, the weighing assembly includes four support blocks 201 arranged in a circular array on the outer side of the weighing hopper 1 by bolts, and a weight sensor 4 disposed between the support blocks 201 and the support frame 2. The upper side of the weight sensor 4 is connected to the lower side of the support block 201. When in use, the weight inside the weighing hopper 1 increases, and under the action of gravity, it moves downward and presses the weight sensor 4, so that the weight sensor 4 can measure the weight of the weighing hopper 1 in real time, thereby enabling the operator to accurately measure and control the liquid content inside the weighing hopper 1.

[0024] In this embodiment, the drainage component includes a water storage tank 11, a drain pipe 15 connected to the outer side of the drain outlet 101, a drain valve 14 installed on the drain pipe 15, one end of the drain pipe 15 inserted into the water storage tank 11, a water pump 12 installed on the upper side of the water storage tank 11, and a water supply pipe 13 connected between the water pump 12 and the upper side of the liquid storage tank 5. The lower end of the water pump 12 is located at the lower end inside the water storage tank 11. When there is too much water in the weighing hopper 1, the operator opens the drain valve 14 to discharge the water in the weighing hopper 1 into the water storage tank 11 through the drain pipe 15, thereby ensuring the accuracy of the water flow in the weighing hopper 1. The operator can use the water pump 12 to flow the water in the water storage tank 11 into the liquid storage tank 5, thereby ensuring the reuse of the water in the water storage tank 11 and reducing the waste of resources.

[0025] In this embodiment, the lower side of the support frame 2 has four support legs 3 arranged in a rectangular array by bolts. In use, the support legs 3 can support the support frame 2 as a whole, thereby improving the stability of the support frame 2.

[0026] In this embodiment, a base plate 18 is welded to the lower side of the support leg 3. During use, the base plate 18 can increase the contact area between the support leg 3 and the ground, further increasing the reliability of the support frame 2 during use.

[0027] In this embodiment, a cover plate 202 is fixed to the upper side of the weighing hopper 1 by bolts. The upper side of the cover plate 202 has a through hole for the quick-discharge pipe 7 and the precision-discharge pipe 8 to pass through. In use, the cover plate 202 can prevent the water in the weighing hopper 1 from splashing out when the quick-discharge pipe 7 and the precision-discharge pipe 8 are supplying water to the weighing hopper 1, thereby reducing the waste of resources.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A liquid ultra-precision metering device, comprising a weighing hopper with a drain outlet and a support frame, wherein the weighing hopper is located inside the support frame, characterized in that: A liquid storage tank is provided on the upper side of the support frame. An inlet pipe and a fast outlet pipe are connected to the upper side of the liquid storage tank. The other end of the fast outlet pipe is located inside the weighing hopper. An inlet valve is provided on the inlet pipe. A precision outlet pipe is connected to the lower side of the liquid storage tank. A manual valve and a pneumatic valve are provided on the precision outlet pipe. The manual valve is located above the pneumatic valve, and both the manual valve and the pneumatic valve are located above the weighing hopper. A weighing assembly is provided between the weighing hopper and the support frame; The drain outlet is connected to a drainage component.

2. The liquid ultra-precision metering device according to claim 1, characterized in that: The weighing assembly includes four support blocks arranged in a ring on the outer side of the weighing hopper and a weight sensor disposed between the support blocks and the support frame. The upper side of the weight sensor is connected to the lower side of the support block.

3. The ultra-precise liquid metering device according to claim 1, characterized in that: The drainage assembly includes a water storage tank, a drainage pipe connected to the outer side of the drain outlet, a drainage valve installed on the drainage pipe, one end of the drainage pipe inserted into the water storage tank, a water pump installed on the upper side of the water storage tank, a water supply pipe connected between the water pump and the upper side of the liquid storage tank, and the lower end of the water pump located at the lower end inside the water storage tank.

4. The liquid ultra-precision metering device according to claim 1, characterized in that: The lower side of the support frame has a rectangular array of four support legs.

5. A liquid ultra-precision metering device according to claim 4, characterized in that: A base plate is provided on the lower side of the support leg.

6. The ultra-precise liquid metering device according to claim 1, characterized in that: The weighing hopper is provided with a cover plate on its upper side, and the upper side of the cover plate has a through hole for the fast water outlet pipe and the precision water outlet pipe to pass through.

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